HPLC法测定不同厂家产二十五味珊瑚丸中羟基红花黄花素A的含量

目的:运用HPLC法测定不同厂家产的二十五味珊瑚丸中羟基红花黄花素A的含量。方法:采用Agilent Polaris NH2柱(250mm×4.6mm,5μm);甲醇26%-乙腈2%-磷酸水72%(p H=2.5)作为流动相;流速1.0m L/min;柱温25℃进行检测。结果:厂家B产二十五味珊瑚丸中羟基红花黄色素A含量最多,厂家C产二十五味珊瑚丸其含量相对较少;测定出的二十五味珊瑚丸中羟基红花黄色素A含量范围在1051.19～464.62μg/g之间。结论:五个厂家生产的二十五味珊瑚丸中羟基红花黄色素A含量存在较大差异。     

蒙药吉祥安坤丸的药效学研究

目的：研究蒙药吉祥安坤丸对动物子宫功能的影响及抗炎作用．方法：观察药物对大鼠在体子宫收缩的影响；采用二甲苯致小鼠耳廓炎症的动物模型，观察吉祥安坤丸的抗炎作用．结果：蒙药吉祥安坤丸能使大鼠在体子宫平滑肌松弛，对小鼠具有明显抗炎作用．结论：蒙药吉祥安坤丸对子宫平滑肌的影响及抗炎作用是用于治疗月经不调、产后发烧、乳腺炎等的重要药理学基础．     

二十五味珊瑚丸中西红花苷I＆Ⅱ的含量测定研究

目的：建立高效液相色谱法测定二十五味珊瑚丸中西红花苷含量的方法。方法：采用HPLC法,色谱柱：DionexC18柱（250ram×4．60mm,5um）;流动相为甲醇-水（52：48）,流速为0．8ml／min,检测波长为440nm,柱温为250C;进样量10μl;用标准曲线法定量,测定二十五味珊瑚丸中西红花苷含量。结果：西红花苷I在33μg-330μg范围内与峰面积呈良好的线性关系（r=0．9999）,西红花苷Ⅱ在62μg-310μg范围内与峰面积呈良好的线性关系（r=0．9998）,平均回收率为103．73％,RSD为1．68％（n=6）。结论：本方法操作简单、重现性好,可用于测定二十五味珊瑚丸中西红花苷I＆Ⅱ含量。     

羟基红花黄色素A提取工艺的探讨

目的 研究并分析羟基红花黄色素A提取工艺,对该工艺做进一步改善与优化,使其更好的应用于医疗事业方面.方法 为使菊科植物红花内的羟基红花黄色素A含量达到更好的药用指标,对羟基红花黄色素A提取工艺进行进一步探究.对于红花的提取温度、浸泡时间、提取的溶剂用量多采用正交方法和单因素方法进行探究考察.结果 对于羟基红花黄色素A的最佳提取方法是用20倍的水将红花浸泡,然后于12h和4h各提取一次,过滤成液体,并合并过滤.同时,羟基红花黄色素A的提取在高温下及其不稳定,不易提取,而在低温下稳定性良好,便于提取.结论 使用浸渍法对羟基红花黄色素A进行提取,操作简便易懂,合理方便,但要控制好温度与时间.     

羟基红花黄色素A稳定性研究

羟基红花黄色素A为红花黄色素制剂中活血化瘀的主要有效成分,为了保证该制剂中有效成分的含量,利用高效液相色谱法研究了温度、光照、抗坏血酸、EDTA、微量金属离子等对羟基红花黄色素A稳定性的影响。结果显示:光照和温度对羟基红花黄色素A的稳定性影响比较大。当温度高于60℃,加热一定时间后,羟基红花黄色素A就会发生水解;在避光条件下,羟基红花黄色素A有较好的稳定性。Fe3+,Fe2+对羟基红花黄色素A的含量都有不同程度的影响;微量的EDTA和抗坏血酸可明显的提高羟基红花黄色素A的稳定性。     

高效液相色谱法测定吉祥草根茎中芦丁的含量

目的：建立吉祥草根茎中芦丁的含量测定方法.方法：采用高效液相色谱技术测定芦丁的含量,色谱条件为：Diamonsil C18（4.6 mm×250 mm,5μm）色谱柱,乙腈-0.1%磷酸水（28：72）为流动相,恒定流速为1.0 mL/min,检测波长为350 nm,柱温25℃.结果：吉祥草根茎中芦丁的含量为0.26%.芦丁在0.13～0.65 mg/mL范围内与色谱峰面积呈良好的线性关系,r=0.999 9,平均回收率为99.87%,RSD（n=5）为1.41%.结论：该方法简便准确,重现性好,可以作为吉祥草中芦丁的含量测定方法.     

HPLC法测定蒙药胡日查-6味丸中没食子酸的含量

目的：建立蒙药胡日查-6味丸中没食子酸的高效液相色谱含量测定方法.方法：采用反相高效液相色谱法,色谱柱为Diamonsil C18柱（150mm×4.6mm,5μm）;流动相为0.1%磷酸水溶液-甲醇（96：4）;检测波长为273 nm;流速为1.0ml/min,柱温30℃的条件下进行含量测定.结果：没食子酸在0.135～0.810μg范围内与峰面积积分值呈良好的线性关系.回归方程为Y=2557.2X-14459,r=0.9997,加样回收率为99.05%,RSD为0.83%（n=6）.结论：本法简便、快捷、重复性好,结果准确可靠,可为研究蒙药胡日查-6味丸的质量标准方法的建立提供可靠依据.     

桃仁与红花配伍对药材成分溶出的影响

对桃仁与红花配伍对药材成分溶出的影响进行研究.采用单因素试验和正交试验,以羟基红花黄色素A提取转移率与干膏率的综合评分为指标,优选红花最佳提取工艺,以苦杏仁苷提取转移率与干膏率的综合评分为指标,优选桃仁最佳提取工艺.在最佳提取工艺下,将桃仁与红花配伍,采用高效液相色谱法测定红花中羟基红花黄色素A提取转移率,并进行统计分析.实验结果显示,红花最佳提取工艺为提取2次,每次提取1.5 h,液料比为50∶1,桃仁最佳提取工艺为提取3次,每次提取3.5 h,液料比为8∶1.实验结果表明,桃仁对红花中羟基红花黄色素A提取转移率无显著性影响.     

二十五味珊瑚丸中西红花苷Ⅰ&Ⅱ的含量测定研究

目的:建立高效液相色谱法测定二十五味珊瑚丸中西红花苷含量的方法。方法:采用HPLC法,色谱柱:Dionex C18柱(250mm×4.60mm,5um);流动相为甲醇-水(52:48),流速为0.8ml/min,检测波长为440nm,柱温为25℃;进样量10μl;用标准曲线法定量,测定二十五味珊瑚丸中西红花苷含量。结果:西红花苷Ⅰ在33μg～330μg范围内与峰面积呈良好的线性关系(r=0.9999),西红花苷Ⅱ在62μg～310μg范围内与峰面积呈良好的线性关系(r=0.9998),平均回收率为103.73%,RSD为1.68%(n=6)。结论:本方法操作简单、重现性好,可用于测定二十五味珊瑚丸中西红花苷Ⅰ&Ⅱ含量。     

八珍丸中阿魏酸含量测定

本文介绍了建立反相高效液相色谱法测定八珍丸中阿魏酸的具体含量。方法：采用奥泰公司C18色谱柱（218mm×4.6mm,5μm）,乙腈一0.085%磷酸溶液（17：83）,检测波长为316nm,流速为1.0ml/min,柱温为30℃。阿魏酸在9.6～48.0μg·mL-1范围内呈良好的线性关系（r=0.9998）。阿魏酸平均回收率分别为99.1%。此方法简便、准确,可用于八珍丸中阿魏酸的含量测定。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to